Air purifier



FIG. 1 is a perspective view of an air purifier showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a plan view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof, a left side view being symmetrical to the right side view;

FIG. 7 is a sectional view taken along line 7—7 in FIG. 2;

FIG. 8 is a sectional view taken along line 8—8 in FIG. 2;

FIG. 9 is a perspective view of a modified example of the air purifier showing my new design, a rear view thereof being identical to FIG. 3, a plan view thereof being identical to FIG. 4, a bottom view thereof being identical to FIG. 5, a right side view thereof being identical to FIG. 6, a left side view thereof being symmetrical to the right side view;

FIG. 10 is a front view thereof;

FIG. 11 is a sectional view taken along line 11—11 in FIG. 10; and,

FIG. 12 is a sectional view taken along line 12—12 in FIG. 10. 

The ornamental design for an air purifier, as shown and described. 